Precision and scale of numeric column reported as value -1

Bug to report - For a numeric in a table defined by:
CREATE TABLE SERG (F01NUM NUMERIC) ;
, the precision and scale reported by ResultSetMetaData.getScale() and
ResultSetMetaData.getPrecision() are value -1

Attached is a simple java program (Repro1.java) that repros the problem.

Before running repro, you must first create the table "SERG" in a
postgreSQL
database and then modify the url, userid and password in the program to
appropriate values. Notice that output from program shows precision =
-1, scale = -1

Please note that the problem occurs for NUMERIC columns whose precision
and scale are not explicitely stated. For example a column defined as
NUMERIC(10,2) returns a correct precision and scale.

Thanks, Sergio Lob